Fangrui Product Details 1. Mld-568 Office Gaming Mute Wireless Mouse Keyboard Set 2. Simple And Stylish, Silent Office, Crater Structure, Usb Interface, Compatible With A Variety Of Devices 3. Ergonomic Design, Lightweight And Durable 4. The Crater Structure Design, The Key Cap Is Evenly Stressed, Effectively Reducing The Chance Of Misplaying, The Key Cap Rebounds Strongly, And The Hand Feels Comfortable 5. Chocolate Keycap Design, Comfortable To Use, Light Operation Feel, High Work Efficiency 6. Fast Multimedia Keys Make Work And Entertainment More Convenient 7. Plug And Play, Micro Usb Receiver Without Any Driver 8. The Ergonomic Inclination Angle Allows The Hand To Relax Naturally, The Wrist Is Naturally Vertical When In Use, Reducing The Load On The Hand, The Keys Are Sensitive And Quick Rebound, Suitable For Long-term Tapping 9. 800-1200-1600dpi Switch, Switch Speed At Will 10. Number Of Keys: Keyboard: 96 Keys, Mouse: 4 Keys 11. System Requirements: Win7win8xp 12. Power Supply Mode: Keyboard: 2 X Aaa Batteries, Mouse: 1 X Aaa Battery (the Product Does Not Include Batteries) 13. Dimensions: Keyboard: 370 X 126 X 25mm, Mouse: 113 X 59 X 20mm 14. Weight: Mouse: 50g, Keyboard: 300g